Model # THD-4000B

Internet #204406474

Aquasana Premium Counter Top Water Filter System in Black


Premium Counter Top Water Filter System in Black

  • Drastically reduces odors and contaminants in tap water
  • Treats the equivalent of 4000 16 oz. water bottles
  • Backed by a 1-year limited manufacturer warranty
$7999 /each

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  • Black
  • White
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Product Overview

Transform ordinary tap water into great-tasting, healthy water with Aquasana’s innovative filter. Get always available, healthy water, right from your tap. No need to ever refill or wait for a drip pitcher again. This water filter system provides the healthiest, best-tasting water by selectively filtering more contaminants like lead, chlorine, chloramines and cysts while preserving beneficial minerals like calcium, potassium and magnesium. Aquasana gives you exceptional value, with water costing as little as ten cents a Gal. When you replace your filters every six months. Each time you replace the filters, you can give yourself credit for not using 4,000 16 oz. plastic bottles.

  • Aquasana drinking water filters reduce more contaminants at the best value
  • Attaches in minutes to your existing tap and takes only a small space on your counter
  • Latest model featuring easy-change cartridges, a reinforced housing and a new diverter
  • Unique claryum filtration technology is certified to filter over 60 different types of water contaminants including: chlorine, chloramines, particulates, mercury, lead, volatile organic compounds and asbestos
  • For a complete list of contaminants reduced, see the Aquasana AQ-4000 performance data sheet
  • System tested and certified by NSF international against NSF/ANSI standards 42 and 53 for the reduction claims specified on the performance data sheet
  • Stylish, sleek design fits with any decor style
  • Also available in white

Info & Guides

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Fitting size (in.)
Product Depth (in.)
Product Height (in.)
Product Width (in.)


Chlorine reduction (%)
No additional features
Filtration Method
Carbon Block
Fitting style
Lead reduction (%)
Maximum feed water pressure (psi)
Maximum feed water temperature (F)
Maximum filtered water flow (gallons per min.)
Minimum feed water pressure (psi)
Minimum feed water temperature (F)
Number of filters included
Number of stages
Product Weight (lb.)
Water Filtration System Type
Counter Top

Warranty / Certifications

Certifications and Listings
NSF Listed
Manufacturer Warranty
90 day guarantee, one year limited

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Customer Questions & Answers

Can you use the facet separately when the filter is attached

Asked by: Herb
Answered by: Yorkiemom
Date published: 2017-07-13

How long is the diverter hose for AQ-4000

How long is the diverter hose?
Asked by: Claire
Claire, The diverter hose is 3 feet long. Thank you, Aquasana Service Team
Answered by: Aquasana Service Team
Date published: 2017-07-13

what replacement filters does it use and how much do they cost?

I am thinking of buying the Aquasana AQ-4000W counter top water filer and want to know the cost of replacement filters, item #'s and when they should be changed. Thanks
Asked by: Al
Thank you for your recent inquiry with The Home Depot. We carry the Dual Set Counter Top Water Filter Replacement Cartridges Internet # 204406478. They need to be replaced every 6 months or 450 gallons. This item is currently in stock online. For any other questions, please call us at Customer Service 800-430-3376. Thank you for shopping Home Depot
Answered by: THDSupport
Date published: 2017-07-13
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Customer Reviews

Premium Counter Top Water Filter System in Black is rated 4.0 out of 5 by 22.
Rated 5 out of 5 by from Excellent product. I highly recommend this filter system. Excellent product. I highly recommend this filter system.
Date published: 2017-04-19
Rated 4 out of 5 by from Installs Fast, Filters up to 450 gallons, Chromed Metal Faucet Fixture The water filter by Aquasana is great in applications where you want your tap water filtered without installing a large filtration system onto your entire house water supply. Out of the box you'll get the silver plastic filter container with filters pre-installed, the chrome metal hose/faucet attachment, the hose assembly and an assortment of adapters and washers for different sinks. The parts count is low, and installation takes less than 20 minutes including flushing the filter once it's hooked up. NOTE: This filter will NOT work with the type of gooseneck faucets where the entire faucet head pulls off as a sprayer. It's important to know that before you buy it. You insert the color coded hoses into the bottom of the filter housing, then unscrew the faucet strainer and screw on the new faucet adapter/filter lines. If you can attach a hose to your faucet, you can install this filter. No plumbing experience, special parts or plumbing tools are needed. Once installed you have to flush the filter for ten minutes and then you're ready to use it for drinking water. You can only use cold water with this filter. Hot water will ruin the filters. Press the tab on the adapter and turn on the cold water. It flows at about 1/2 gallon per minute with the faucet opened all the way. It's completely silent, no odds sounds like some smaller size filters as the water is pushed through. It doesn't take long to fill a pitcher. Once the container or glass is full, shut off the water and the filter valve automatically closes for you, letting you use the regular faucet again. The filtered water is crystal clear and completely odor free. Just like water should be. Replacement filters can be found easily by searching the model number of the filter you have.
Date published: 2013-07-23
Rated 5 out of 5 by from Reduces your carbon footprint Since we already have an under sink water filter system in our kitchen, this Over the Counter Filter System was a perfect option for our upstairs guest bath vanity. Now we do not have to come downstairs middle of the night to get filtered water. Installation of this unit is very easy, requires no skill set and needs about 2 minutes of your time. Filter system ships with 2 pre-installed filters and 2 extra adaptors in case your application needs one. The hose assembly pipes are approximately 28 inches long. I wasn’t sure how the hose assembly would look like over the counter, but once installed I was quite happy with overall appearance of this filter system. Maximum filtered water flow being 0.5 gallons per minutes makes it high efficiency filter system. As instructed in instructions manual, after installation I ran the water for 10 minutes through the filter system and then gave it a try. It indeed did a great job filtering the water. Water was tasteless, colorless and odor less as it should be. I would recommend you to view a complete listing of performance data available in Info & Guide section just above the Specifications section of this product page at Home Depot web site so you can get a good idea what it filters and what it doesn’t. Filters are to be replaced every 6 months or after 450 Gallons of filtered water. However, I am not sure if this filter has capability of keeping track how many gallons are more to go and Installation Manual does not mention it anywhere. The replacement filters are about $60. With that said, your monthly cost to drink filtered water comes to $10. For the entire family, 30 days of filtered water for $10 is not a bad deal at all but the best part is that it greatly helps you reduce your carbon footprint. We are happy with it and look forward to clean drinking.
Date published: 2013-09-03
Rated 5 out of 5 by from Worth the try! First sink-top water filter and so far, I'm loving it! I've tried others that are heavy and tend to have the whole component attached to the end of the faucet. After time, had to replace faucet due to the weight of the was thrilled to see there was an affordable sink-top version. Super, super easy to set-up...took less than a couple of minutes, easy to follow directions. I love the button that you use to change the water flow to the filtered water, if you forget to change the water back and shut the water off...the system shuts it off for you. The chrome filter unit is so sleek & you really don't notice it on your counter top. I was worried the water lines wouldn't be long enough, but had plenty of room. The water tastes great and I can't wait to start saving money but filling my own water bottles....WOO HOO! I would highly recommend this unit, I'm glad I have it. You'll be saying, too: "Worth the try!" Enjoy :)
Date published: 2013-07-22
Rated 2 out of 5 by from I did not realize until I received the item and started reading the directions that said I cannot... I did not realize until I received the item and started reading the directions that said I cannot use the product on my kitchen sink if I had a sprayer. I had to return the item.
Date published: 2016-10-25
Rated 1 out of 5 by from Very disappointing. It leaks like crazy and the water doesn't really taste any different than it ... Very disappointing. It leaks like crazy and the water doesn't really taste any different than it does straight from the tap. I will probably return this.
Date published: 2016-11-01
Rated 4 out of 5 by from Good filtered water, but bulky The system does a nice job of filtering water, however it is bulky on the counter. There are two hoses that will get in the way when you do you dishes. The aerator screws off and the filter spicket screws in. When you press the button it will send the tap water through one line through the filter and back to the spicket with filtered water. If you have a head that does not accept the standard size aerator this will not work. If you have a detachable want it will be cumbersome to use this filter because of the lines attached to the head. I have well water and it really does a nice job removing the salty rusty taste from the water. I think this is a nice short term solution or simple way to filter water.
Date published: 2013-07-29
Rated 5 out of 5 by from works as advertised Setup was simple with easy to follow instructions. I had it out of the box and operational in less than 5 minutes. Now I can make my coffee using tap water and it tastes great. The unit takes up very little counter space and doesn't get in the way. Water flow is reduced when using it but that's to be expected and there are no leaks
Date published: 2013-09-24
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